PERC H740P + Supermicro CSE-216BE1C-R920LPB (chassis with expander)

| F.A.Q.
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When the controller does not detect the drives and an error is displayed:

Attached Enclosure doesn't support in controller's Direct mapping mode Please contact your system support. The system has halted due to unsupported configuration.

For the controller to work properly, directpdmapping must be disabled using the PercCLI utility.
This tool can be downloaded from Dell's website: https://www.dell.com/support/home/pl-pl/drivers/DriversDetails?driverId=3XDPP
The downloaded archive should be unpacked, the *.rpm file contained in the archive should be installed with the rpm -ivh perccli-1.17.10-1.noarch.rpm command in a LiveUSB environment running CentOS/openSUSE/RHEL/Fedora. Then navigate to the PercCLI tool folder with the command cd /opt/MegaRAID/perccli and execute the command ./perccli64 /c0 set directpdmapping=off. After restarting the server, the controller should work without any problems.

After the reboot is done, we can see the information:

All of the disks from your previous configuration are gone. If this is an unexpected message, then please power off your system and check your cables to ensure all disks are present. Press any key to continue.

This means that the controller has remembered some previous configuration of disks, which needs to be cleared.

You should run the perccli64 utility

Perccli show - then you will know what ID number the controller has . Then under cx for x we replace the number of the controller
Then use the commands
perccli /c0/vall delete preservedcache
perccli /c0/vall del

command perccli64 /c0 show - it also displays the attached disks

If the LEDs on the backplane don't indicate disks, we can find them

perccli64 /c0/e65/s0 start locate

c0 controller number
e65 enclosure id
s0 slot 0

Lights the LED in slot 0, if it detects a disk.

Related pages:

  1. Supermicro X11SSL-CF: after BIOS update cannot access a RAID controller
  2. StorCli in example AOC-S3108L-H8IR (Manage and Troubleshooting)
  3. RAID Types 0, 1, 5, 6, 10, 50, 60 & RAID Calculator (What RAID level to choose for a server?)
  4. Cable for Supermicro RAID, HBA, JBOD Controller - Compatibility Matrix